Fides Belza Cuyugan-Asensio (born August 1, 1931) is a Filipino coloratura soprano, director, librettist, TV host, translator, and teacher.

More significantly, she was praised by the grand dame Jovita Fuentes (who was in the audience), who proclaimed that the young soprano would "inherit my mantle someday.

She also performed in many world premiere performances of Filipino operas, like in Rosendo Santos' Mapulang Bituin, Eliseo Pajaro's Binhi ng Kalayaan, Kasilag's Dularawan, and most notably as Sisa in Felipe de Leon's Noli me Tangere in 1957.

She has also sung lead roles in Menotti's The Telephone, Donizetti's Lucia di Lammermoor, Mozart's Die Entführung aus dem Serail, Verdi's La Traviata, Britten's Turn of the Screw, and Debussy's L'Enfant Prodigue and many more.

[3] In 1986, Fides Asensio formed the Music Theater Foundation of the Philippines (MTFP), a non-profit organization dedicated to promote, stage, and give scholarships to young classical performers.